Physics - Motion problem
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Physics - Motion problem

[From: ] [author: ] [Date: 11-09-07] [Hit: ]
what is the protons average acceleration in unit vector notation, (b) in magnitude?-acceleration is change in velocity/time; delta v = vfinal - v initial,acceleration = (-33 i +0 j +1 k)/3.the magnitude = sqrt[(-33/3.7)^2 +(1/3.......
A proton initially has V = (18)i + (5.6)j + (14)k and then 3.7 s later has V = (-15)i + (5.6)j + (15)k (in meters per second). (a) For that 3.7 s, what is the proton's average acceleration in unit vector notation, (b) in magnitude?

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acceleration is change in velocity/time; delta v = vfinal - v initial, so here:

acceleration = (-33 i +0 j +1 k)/3.7s

the magnitude = sqrt[(-33/3.7)^2 +(1/3.7)^2]

calculate these and you are done
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